[feat][backend]adapter auto openapi time range

[cuichen01]

What type of PR is this?

Check the PR title

• This PR title match the format: [<type>][<scope>] <description>. For example: [fix][backend] flaky fix
• The description of this PR title is user-oriented and clear enough for others to understand.
• Add documentation if the current PR requires user awareness at the usage level.
• This PR is written in English. PRs not in English will not be reviewed.

(Optional) Translate the PR title into Chinese

(Optional) More detailed description for this PR(en: English/zh: Chinese)

en:
zh(optional):

(Optional) Which issue(s) this PR fixes

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

@@           Coverage Diff           @@
##             main     #440   +/-   ##
=======================================
  Coverage   73.77%   73.77%           
=======================================
  Files         625      626    +1     
  Lines       64818    64828   +10     
=======================================
+ Hits        47820    47830   +10     
  Misses      13751    13751           
  Partials     3247     3247           

Flag	Coverage Δ
unittests	73.77% <100.00%> (+<0.01%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
...ckend/modules/observability/application/openapi.go	79.42% <100.00%> (+0.17%)	⬆️
...ckend/modules/observability/infra/rpc/auth/auth.go	63.24% <100.00%> (ø)
...dules/observability/infra/time_range/time_range.go	100.00% <100.00%> (ø)

---

Continue to review full report in Codecov by Sentry.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 4b62939...6b82824. Read the comment docs.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.